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-- source include/have_query_cache.inc
#
# Bug#38551 query cache can still consume [very little] cpu time even when it is off.
#
SHOW GLOBAL VARIABLES LIKE 'query_cache_type';
--error ER_QUERY_CACHE_DISABLED
SET GLOBAL query_cache_type=ON;
--error ER_QUERY_CACHE_DISABLED
SET GLOBAL query_cache_type=DEMAND;
SET GLOBAL query_cache_type=OFF;
SET GLOBAL query_cache_size=1024*1024;
SHOW GLOBAL VARIABLES LIKE 'query_cache_size';
SET GLOBAL query_cache_size=DEFAULT;

--echo #
--echo # BUG#16906827 - CAN'T SET QUERY_CACHE_TYPE TO 0 WHEN IT IS ALREADY 0
--echo #
SHOW GLOBAL VARIABLES LIKE 'query_cache_type';
--echo # This statement will pass if run with the fix and fail with 
--echo # ER_QUERY_CACHE_DISABLED if run without the fix.
SET GLOBAL query_cache_type=OFF;
--error ER_QUERY_CACHE_DISABLED
SET GLOBAL query_cache_type=ON;
--error ER_QUERY_CACHE_DISABLED
SET GLOBAL query_cache_type=DEMAND;
--echo # This statement will pass if run with the fix and fail with 
--echo # ER_QUERY_CACHE_DISABLED if run without the fix.
SET SESSION query_cache_type=OFF;
--error ER_QUERY_CACHE_DISABLED
SET SESSION query_cache_type=ON;
--error ER_QUERY_CACHE_DISABLED
SET SESSION query_cache_type=DEMAND;